From d618ba314d1452c1cb4360e15ae1c80adac48306 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dag-Erling=20Sm=C3=B8rgrav?= <des@FreeBSD.org>
Date: Sat, 18 Apr 2026 14:48:04 +0200
Subject: [PATCH] du: Set BLOCKSIZE before running tests

Several testcases assume BLOCKSIZE=K, so set it at the top of the
script.  This fixes an issue where the tests would sometimes fail
when run under sudo.

MFC after:	1 week
Sponsored by:	Klara, Inc.
Reviewed by:	kevans
Differential Revision:	https://reviews.freebsd.org/D56476
---
 usr.bin/du/tests/du_test.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/usr.bin/du/tests/du_test.sh b/usr.bin/du/tests/du_test.sh
index 58ff1c3ecbd..16accdcb42a 100755
--- a/usr.bin/du/tests/du_test.sh
+++ b/usr.bin/du/tests/du_test.sh
@@ -23,6 +23,10 @@
 # SUCH DAMAGE.
 #
 
+# This is the default in a FreeBSD login session, but may be unset if
+# run under sudo or in a different environment.
+export BLOCKSIZE=K
+
 require_sparse_file_support()
 {
 	if ! getconf MIN_HOLE_SIZE "$(pwd)"; then